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Board of Directors

About Our Board of Directors

Impact100 Sonoma is governed by an all-volunteer Board of Directors, each member of whom is responsible for a particular aspect and function of operation. Board members also chair the committees of volunteers who keep the organization running. To learn more about board service opportunities, contact our Governance Chair at governance@impact100sonoma.org.


2025/2026 Board of Directors


Debbe Noto


Debbe Noto

President

Debbe brings more than 30 years in the banking industry to her role, including experience in operations, relationship management, sales, marketing, and communications. She joined Impact100 Sonoma in 2017.

Barbara Insel



Barbara Insel

Treasurer

Barbara has been deeply involved in the wine industry since 2004, most recently founding wine-business consultancy Insel & Co. in 2018. Over the previous 20+ years, she built a distinguished career with leading firms in international finance, investment strategy, and research, and taught at the college and professional level. Throughout, she has engaged in community development and charitable support activities. She joined Impact100 Sonoma in 2022.

Bobbie Collins



Bobbie Collins



Secretary

Bobbie is a former regulatory compliance and risk management professional with more than 30 years of experience in banking and other industries, serving in staff, management, and consulting roles. Since retirement, she has tapped into her creative side to support nonprofit organizations and community projects. She joined Impact100 Sonoma in 2014.

Margery Mayer



Margery Mayer 

Governance Chair

Margery has been a program management leader with deep experience in high-tech manufacturing and pharmaceuticals. She built and sold a program management consulting company that advised executives of various industries, and holds a Ph.D. in Behavioral Science. She joined Impact100 Sonoma in 2022.

Molly Detwiler



Molly Detwiler

Communications Co-Chair

Molly is a writer and editor with more than 30 years of corporate communications experience in staff, management, and consulting roles. She has built brands and developed voices for organizations of all kinds and sizes, from Fortune 500 companies to startups, including a number of local nonprofits. She joined Impact100 Sonoma in 2022.

Cristine McMillan



Cristine McMillan

Communications Co-Chair

Cristine is a marketing professional with more than 20 years of experience supporting growth at Bay Area technology companies. She specializes in developing training programs, creating compelling content and communications, and building resources that engage diverse stakeholders. She is passionate about empowering organizations through clear, strategic messaging and effective enablement. She joined Impact100 Sonoma in 2022.

Ann Arabian



Ann Arabian

Membership Co-Chair

After performing worldwide with Up with People, Ann spent 16 years as a United Airlines flight attendant before dedicating herself to raising her two children and volunteering at their schools. Most recently she served three years as president of the Sonoma Valley Newcomers Club and five years on the P.E.O. California State Chapter board, supporting educational opportunities for women. She joined Impact100 Sonoma in 2020.

Stephanie Chakmak



Stephanie Chakmak

Membership Co-Chair

A former banking project manager, Stephanie specialized in international trade finance, acquiring skills that transitioned seamlessly from the boardroom to raising her two children. An avid community volunteer, she has served as a Los Angeles Zoo docent and Girl Scout leader, as well as conquered 52 peaks in Southern Nevada. She joined Impact100 Sonoma in 2018.

Leslie Blankenship




Leslie Blankenship

Vice President/Grants Oversight Co-Chair

Leslie is an attorney who has served as corporate counsel for several high-tech companies. Employing both her legal and business experience, she has spent the last 25 years serving on a number of local nonprofit boards. She joined Impact100 Sonoma in 2017.

Alison Thompson



Alison Thompson

Vice President/Grants Oversight Co-Chair

Alison is a former management consultant and executive recruiter with extensive experience in strategy, talent, and organizational change. She led large-scale transformation projects for Fortune 500 clients and later conducted executive searches in the education technology sector. She joined Impact100 Sonoma in 2022.

Kathryn Rakow



Kathryn Rakow

Grants Oversight

Kathryn is a former management consultant and software executive with experience in strategic management, marketing, product management, and operations and has served on the boards of numerous nonprofit organizations. After retiring from the corporate world, she started a garden design business, which she still enjoys. She joined Impact100 Sonoma in 2022.

Jennifer Ramsey



Jennifer Ramsey

Grants Oversight

For more than 30 years, Jennifer owned a company providing business services that helped hotel developers furnish luxury and business properties across the country. With dreams of retiring, she joined Impact100 Sonoma in 2018 and has served the grants review process since 2019.

Cheryl Shimek



Cheryl Shimek

Engagement & Education Chair

After 10 years as a cardiovascular critical-care nurse, Cheryl earned an MBA and began a career in the medical device industry. She spent more than 30 years leading multidisciplinary teams and companies in the development, manufacturing, and marketing of unique tools for monitoring and treating critically ill patients. She joined Impact100 Sonoma in 2019.

Linda Murphy



Linda Murphy

Events Co-Chair

Linda has worked in corporate and social catering and events management for the past 30 years with clients in some of Silicon Valley’s top companies and organizations. She also has studied meditation and healing arts since 1985 and is currently an intuitive counselor. A part-time nonprofit employee and engaged community volunteer, she joined Impact100 Sonoma in 2023.

Gigi Pfleger



Gigi Pfleger

Events Co-Chair

Gigi is a realtor with Coldwell Banker Brokers of the Valley and previously owned and operated a design and decor business for more than 15 years. Known for relationship building, clear communication, and responsiveness, she brings a strong eye for detail and thoughtful execution to her role. She enjoys volunteering in the community and collaborating with others. She joined Impact100 Sonoma in 2022.





Contact us


Impact100 Sonoma
P. O. Box 1958
Sonoma, CA 95476
(707) 939-5007

Contacts By Area

GENERAL INFORMATION

For basic information: 

info@impact100sonoma.org

Press contact: 

communications@impact100sonoma.org

MEMBERSHIP

Becoming a Member: membership@impact100sonoma.org
Your membership account: info@impact100sonoma.org

GRANTS

Impetus/Encore Grant questions:

Kathryn Rakow:

 kathryn@impact100sonoma.org

Jennifer Ramsey: 

jennifer.ramsey@impact100sonoma.org

Grants Oversight Co-Chairs:

Leslie Blankenship:

 leslieb@impact100sonoma.org

Alison Thompson:

alison@impact100sonoma.org

SHARE IDEAS AND SUGGESTIONS

Impact100 Sonoma President:  

president@impact100sonoma.org



Impact100 Sonoma is incorporated in the State of California as Women Giving as One, Inc. and is registered with the Registry of Charitable Trusts (Department of Justice of the State of California). As a 501 (c) (3) organization, we are classified as a public charity and contributions are deductible under section 170 of the Internal Revenue Code. Impact100 Sonoma is also qualified to receive tax deductible bequests. Our tax id number (Employer Identification Number) is 27-0845497.


















OUR VISION

A just and thriving Sonoma Valley

OUR MISSION

Empowering women of Sonoma Valley to invest in a more sustainable nonprofit community through collective giving and responsible stewardship

Impact100 Sonoma ©2025. All rights reserved



Impact100 Sonoma
P.O. Box 1958
Sonoma, CA 95476
(707) 939-5007
info@impact100sonoma.org


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